Table 1.
Relevant demographic data, tumor characteristics, and followup results of the two cohorts
| Variable | Ethanol group | Phenol group | Total | p Value |
|---|---|---|---|---|
| Gender | 0.445 | |||
| Female | 20 | 12 | 32 | |
| Male | 15 | 14 | 29 | |
| Age (years)* | 33.3 (14–52) | 28.9 (13–64) | −1.5 – 10.2▲ | |
| Tumor location | ||||
| Distal femur | 11 | 11 | 22 | 0.428 |
| Proximal femur | 3 | 3 | 6 | 1.000 |
| Proximal tibia | 5 | 7 | 12 | 0.330 |
| Tibial diaphysis | 2 | 2 | 0.503 | |
| Distal tibia | 4 | 4 | 0.129 | |
| Fibular head | 3 | 1 | 4 | 0.629 |
| Distal radius | 1 | 1 | 1.000 | |
| Ulna | 4 | 4 | 0.129 | |
| Humerus | 2 | 4 | 6 | 0.387 |
| Total | 35 | 26 | 61 | |
| Type of lesion | 0.016 | |||
| Primary | 27 | 26 | 53 | |
| Recurrent | 8 | 8 | ||
| Campanacci grade | ||||
| Grade I | 5 | 3 | 8 | 1.000 |
| Grade II | 17 | 20 | 37 | 0.035 |
| Grade III | 13 | 3 | 16 | 0.038 |
| Soft tissue extension | 0.020 | |||
| No | 21 | 23 | 44 | |
| Yes | 14 | 3 | 17 | |
| Pathologic fracture on presentation | 0.504 | |||
| No | 30 | 20 | 50 | |
| Yes | 5 | 6 | 11 | |
| Internal fixation | 0.182 | |||
| No | 21 | 20 | 41 | |
| Yes | 14 | 6 | 20 | |
| Followup (months)* | 48.1 (36–76) | 70.8 (36–156) | −37.6 – −7.8▲ | |
| Number of recurrences | 4 (11%) | 3 (12%) | 1.000 | |
| MSTS score (points)* | 27.3 (23–29) | 26.9 (20–29) | 0.261 |
* Values are expressed as mean, with range in parentheses; the remaining values are expressed as number of patients; MSTS = Musculoskeletal Tumor Society; ▲95% confidence interval of the difference.